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moraine.
a narrow ridge of soil, rocks, and boulders
left by glaciers
motion pictures.
movies viewed on a large screen
in amovie theater
mountain ridge.
a long stretch of land that rises
steeply above the surrounding land
mouth.
a natural opening of a waterform that
empties into a larger body of water
National Park Service.
U.S. government
organization whose purpose is to protect and
preserve places of great beauty and of historic
importance
native-born.
people living in the same state in
which theywere born
natural area.
a special place that is in its original
form
natural feature.
a special look or appearance of
somethingmade by nature
natural forces.
processes of nature changing the
physical features of the earth
natural resource.
something that is made by
nature and used by people
natural wonder.
something that has been created
by nature
neutral.
not taking one side or the other
nomads.
people who move their homes searching
for food andwater
non-metallic.
amineral, suchas sand, that doesnot
contain ametal ore
non-renewable.
a natural resource that cannot be
replaced
nuclear.
a form of energy
nuclear fuels.
fuels that are used to produce
tremendous heat formaking electricity
occupations.
different kinds of jobs that people do
to earnmoney
oil.
a product of a fossil fuel
oil refining.
processes by which oil is made into
other products, such as fuel
orchard.
a farm that grows fruit
panhandle.
an area of land that is shaped like the
handle of a pan
pelts.
animal skins used tomake clothing
PennsylvaniaDutch.
religious groups who settled
in Pennsylvania fromGermany and Switzerland
permanent.
to stay in one location
per square mile.
multiplying one mile of land
times another onemile of land
petrochemical factories.
where products are
made from oil or natural gas
physical geography.
the study of the earth’s
surface and its features
piedmont.
land that lies at the base or foot of
mountain land
pipelines.
anetwork of pipes under the ground that
move products and goods
plain.
low, flat, level land
plateau.
land that is higher than the surrounding
area
polluted.
unsafe materials that have been put into
the air, water, or land
population density.
the number of people who
live in a certain area
port.
a place where ships and barges can load or
unload goods
port city.
where large ships travel to and from the
citywith goods and products
precipitation.
the amount of water that falls to the
earth
prejudiced.
showing dislike toward someone or
some group because of differences
Preservation.
aplace or area that is saved for future
use
profit.
the amount of money left after all expenses
have been paid
progress.
tomove ahead
Quakers.
aProtestant religious group that believe all
people are equal
quarry.
a place where a huge pit or hole ismade in
the earth’s surface
radio.
a popular formof home entertainment in the
1920s
railroads.
long cars that are connected and move
over iron tracks
rebuilt.
something old that has been reconstructed
reclaim.
restore the land’s surface to its natural
shape
recycle.
the gatheringof usedmaterials such as glass
to be reprocessed for reuse
Glossary
